Rack guide unit and steering system including the rack guide unit
AssigneeJtekt Corporation
InventorMakoto TAENAKA
Life of this patent
Estimating the term…
Abstract
A rack guide unit includes a closure member secured to an external opening end of an accommodation portion of a housing, and a rack guide. A compression coil spring and a coned disc spring that urge the rack guide toward a rack shaft are interposed between the closure member and the rack guide. A holding member that holds the coned disc spring includes a guide tube that guides a radially inner portion of the coned disc spring and a seat plate that receives a load from the coned disc spring. An elastic member held in an accommodation groove formed in the outer periphery of the guide tube is frictionally engaged with the inner periphery (opposed portion) of a tubular portion of the rack guide.
Claims20
A rack guide unit comprising:
- a rack guide accommodated in an accommodation portion formed in a housing through which a rack shaft meshed with a pinion shaft is passed, so as to be allowed to approach and move away from the rack shaft, the rack guide supporting the rack shaft such that the rack shaft is slidable in an axial direction of the rack shaft;
- a closure member secured to an external opening end of the accommodation portion, the external opening end being located on an opposite side of the accommodation portion from the rack shaft;
- at least one coned disc spring that is interposed between the closure member and the rack guide, and that urges the rack guide toward the rack shaft;
- and
- a holding member that holds the coned disc spring, and that is frictionally engaged with and held by the rack guide directly or indirectly.
Dependencies are inferred from the claim text.